{"tema_id":"1587","string":"reference test block           #00384","created":"2022-12-19 09:13:38","code":null,"notes":[{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R039:2006 2.6 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 00384 "},{"@type":"Definition note","@lang":"en-EN","@value":"hardness test block that has been certified to have a Rockwell hardness value that is traceable to a specific Rockwell hardness standard. Reference test blocks are used for the indirect verification and the daily verification of Rockwell hardness machines "}]}